TERAWULF CAO exercises 10,000 RSUs into shares

Accepted by SEC EDGAR 06/25/2026 - 05:18 PM EDT

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Form Type

Rhea-AI Filing Summary

TERAWULF INC. Chief Accounting Officer William Joseph Tanimoto exercised restricted stock units into 10,000 shares of common stock. These RSUs vested on the first anniversary of June 24, 2025, in line with their terms and subject to his continued service.

After this transaction, he directly holds 48,898 shares of common stock and 20,000 restricted stock units. The remaining RSUs are scheduled to vest on the second and third anniversaries of June 24, 2025, contingent on ongoing employment. The filing shows a compensation-related equity vesting event, with no open-market buying or selling.

Insider Trade Summary

10,000 shares exercised/converted

Exercise 2 txns

Insider Tanimoto William Joseph

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	10,000	$0.00	$0.00
Exercise	Common stock, $0.001 par value per share	10,000	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 20,000 contracts (Direct); Common stock, $0.001 par value per share — 48,898 shares (Direct)

Holdings Before and After: Restricted Stock Units, 30,000 to 20,000 contracts (Direct); Common stock, $0.001 par value per share, 38,898 to 48,898 shares (Direct)

Footnotes (4)

F1. The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.
F2. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.
F3. The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.
F4. The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.

Key Figures

Shares acquired via RSU conversion: 10,000 shares Common shares held after transaction: 48,898 shares Restricted stock units remaining: 20,000 RSUs +2 more

5 metrics

Shares acquired via RSU conversion 10,000 shares Common stock received from vested restricted stock units

Common shares held after transaction 48,898 shares Direct ownership by Chief Accounting Officer after exercise

Restricted stock units remaining 20,000 RSUs RSU balance following vesting and conversion of 10,000 units

Transaction date June 24, 2026 Date of RSU exercise and share acquisition

Par value of common stock $0.001 per share Par value of TERAWULF common stock underlying the RSUs

Key Terms

Restricted Stock Units, contingent right, derivative exercise/conversion, vested in accordance with their terms, +1 more

5 terms

Restricted Stock Units financial

"The Reporting Person received Restricted Stock Units which vested in accordance with their terms"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"Each Restricted Stock Unit represents a contingent right to receive one share"

derivative exercise/conversion financial

"transaction_action": "derivative exercise/conversion""

vested in accordance with their terms financial

"The Restricted Stock Units vested in accordance with their terms upon the first anniversary"

anniversaries of June 24, 2025 financial

"The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did TERAWULF (WULF) officer William Tanimoto report in this Form 4?

William Joseph Tanimoto reported exercising restricted stock units into 10,000 shares of TERAWULF common stock. The RSUs vested on the first anniversary of June 24, 2025, as part of his equity compensation package tied to continued employment.

How many TERAWULF (WULF) shares does William Tanimoto hold after the transaction?

After the transaction, William Joseph Tanimoto directly holds 48,898 shares of TERAWULF common stock. This reflects his position following the conversion of 10,000 restricted stock units into shares, as disclosed in the Form 4 insider filing.

How many restricted stock units does TERAWULF (WULF) officer Tanimoto still have?

Following the vesting and conversion of 10,000 restricted stock units, William Joseph Tanimoto retains 20,000 restricted stock units. These remaining units continue to represent contingent rights to receive TERAWULF common stock under their existing vesting schedule.

What is the vesting schedule for William Tanimoto’s TERAWULF (WULF) RSUs?

One tranche of RSUs vested on the first anniversary of June 24, 2025. The remaining restricted stock units are scheduled to vest on the second and third anniversaries of that date, provided Tanimoto remains employed or in service with TERAWULF.

Was there any open-market buying or selling in this TERAWULF (WULF) Form 4?

The Form 4 shows no open-market purchases or sales. It reflects a derivative exercise where restricted stock units converted into 10,000 common shares as they vested, a typical compensation-related equity transaction rather than a discretionary market trade.

What does each TERAWULF (WULF) restricted stock unit represent in this filing?

Each restricted stock unit represents a contingent right to receive one share of TERAWULF common stock with $0.001 par value. These units convert into shares upon vesting, subject to the officer’s continued employment or service with the company.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Tanimoto William Joseph

(Last)

(First)

(Middle)

C/O TERAWULF INC.

9 FEDERAL STREET

(Street)

EASTON

MARYLAND

21601

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
TERAWULF INC. [ WULF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/24/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common stock, $0.001 par value per share	06/24/2026		M		10,000	A	⁽¹⁾	48,898	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽²⁾	06/24/2026		M			10,000	⁽³⁾	⁽³⁾	Common stock, $0.001 par value per share	10,000	⁽⁴⁾	20,000	D

Explanation of Responses:

1. The Reporting Person received Restricted Stock Units which vested in accordance with their terms upon the first anniversary of June 24, 2025, as reported in this Form 4, subject to the Reporting Person's continued employment or service with the Issuer through such date.

2. Each Restricted Stock Unit represents a contingent right to receive one share of the Issuer's common stock, $0.001 par value per share.

3. The Restricted Stock Units vested in accordance with their terms upon the first anniversary of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through such date.

4. The remaining Restricted Stock Units will vest in accordance with their terms on each of the second and third anniversaries of June 24, 2025, subject to the Reporting Person's continued employment or service with the Issuer through each such date.

Remarks:

	/s/ Stefanie C. Fleischmann, as attorney-in-fact for William J. Tanimoto	06/25/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR